Cylinder-lock construction.



H. G. VOIGHT.

CYLINDER LOCK CONSTRUCTION.

APPLICATION FILED MAY 19, 1911.

1,002,093. Patented Aug. 29, 1911'.

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HENRY G. VOIGI-IT, OF NEW BRITAIN, CONNECTICUT, ASSIG-NOR TO RUSSELL & ERWIN MANUFACTURING COMPANY, OF NEW BRITAIN, CONNECTICUT, A CORPORATION OF CONNECTICUT.

CYLINDER-LOCK CONSTRUCTION.

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Specification of Letters Patent.

Application filed May 19, 1911.

Patented Aug. 29, 1911. Seria1 No. 628,243.

To all whom it may concern:

Be it known that I, HENRY Gr. VoIoH'r, a citizen of the United States, residing at New Britain, Hartford county, State of Connecticut, have invented certain new and useful Improvements in Cylinder-Lock Construction, of which the following is a full, clear, and exact description.

My invention relates to improvements in cylinder lock construction.

In the accompanying drawings, Figure l is a side elevation, partly in section, of my improved cylinder lock as applied to a door. Fig. 2 is an elevation of the inner end of the lock, the attaching plate and screws being removed, as well as the plug. Fig. 3 is a plan view of certain of the parts shown in Fig. 2. Fig. 4 is a rear end elevation of certain of the parts shown in Fig. 1. Fig. 5 is a central longitudinal section of certain parts showing a slight modification. Fig. 6 is an end elevation of the parts shown in Fig. 5.

1 represents a part of a door, having a bore in the outer side extending partially through and of suflicient diameter to permit the cylinder case and associated parts of the cylinder lock to be inserted. This bore is continued on through the door at a somewhat reduced diameter for the purposes hereinafter described.

2 represents the shell or cylinder casing of the lock, the same containing the usual rotatable plug.

3 is the spindle which projects rearwardly from the lock and is connected with the latch or bolt (not shown) to be operated.

4 represents the face plate.

555 represent pin-tumbler passages. The shell and that part thereof providing pin-tumbler passages is an integral structure, being struck up from sheet metal, the edges of said metal being ofiset, as at 66, and scalloped to provide between said scallops the aforesaid pin-tumbler passages. The forward ends of the offset edges 66 are provided preferably with the lugs 77, which may, if desired, be connected by a rivet 8. These lugs dowel into a suitable recess or passage in the rear of the face plate 4 A aid front plate being also bored to rexthe adjacent cylindrical end of the 2, whereby the plate 4 may be secured lanently to said shell. The rear ends of the offset edges 66 are extended to provide the lugs or cars 9-9.

10 represents a rear plate, the two opposite ends of which are provided with the screwpassages 111l shown in Fig. 2. The plate 10 may be riveted to the ears 99 and may be further secured to the cylinder by integral ofiset lugs 12-12.

As shown in the modification, Figs. 5 and 6, the only part modified therein is the rear end of the shell 2, which is spun outwardly to form a ring-like flange 12 which performs the function of the lugs 1212.

14 is a keeper-plate.

15 illustrates an adjusting or clamping screw, which passes through the keeperplate and into one of the screw-threaded openings 11 in the rear end-plate of the cylinder lock structure. A corresponding screw would obviously be provided for the other screw-threaded opening 11.

16-16 are wood screws, which, for convenience sake, may be provided to hold the plate 14 in proper position.

17 is an escutcheon plate, such as ordinarily used on the front of a door.

When the parts are all assembled, it is obvious that by setting up on the screws 15 said cylinder lock will be held securely in place within the opening at the outer side of the door and said spindle 3 will project through the door to engage with such latch mechanism as may be employed, the ordinary well known spring-rim-latch being one form of such mechanism.

It will be observed that the two edges 6-6 of the shell 2 in which the tumbler pockets are formed, will be held together permanently more effectively than by mere rivets, since the projection formed by the ears 77 will take into a correspondingly shaped pocket or passage in the face plate 4 so that when assembled therewith it will be impossible for the shell to spring open. So also, when the ears 9.9 are secured to the rear plate 10, a further means is provided for holding said shell in its final position. As shown herein, the lugs 7-7 may be of suflicient length to pass entirely through the face plate 4 so that they may be offset or riveted, whereby said lugs will perform the additional function of a rivet to tie the separate parts together. When so applied, a finishing scalp, as shown, may be added to the face plate 4 for the purposes of ornamentation, and to cover the upset ends of the lugs 77.

hat I claim is:

1. Ina cylinder look, a shell formed of sheet metal rolled up to form a pin cylinder plug casing, the edges of said shell being offset and scalloped to form a pin tumbler passage when brought together, a face plate and lugs at the front ends of the ofiset edges of the shell to secure said shell to said face plate.

2. In a cylinder lock a shell formed of sheet metal rolled up to form a pin cylinder plug casing, the edges of said shell being offset and scalloped to form a pin passage when brought together, a face plate, lugs at the front ends of the offset edges of the shell to secure said shell to said face plate, and a rear plate With lugs at the rear ends of said offset edges of said shell to afford means of connection for said rear plate.

3. In a cylinder look, a shell formed of sheet metal rolled up to form a pin cylinder plug casing, the edges of said shell being ofiset and scalloped to form a pin passage ,When brought together, a face plate, lugs at the front ends of the offset edges of the shell to secure said shell to said faceplate,

and a rear plate With lugs at the rear ends of'said offset edges of said shell to afford means of connection for said rear plate, said rear plate having a screw-threaded passage, a keeper-plate and a clamping screw carried thereby and arranged to enter said screw-threaded passage.

HENRY Gr. VOIGHT. Witnesses:

M. S. WVIARD, GWENDOLINE A. JACKSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. 0. 

